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首页Draft P802.11ax_D1.4.pdf
IEEE 802.11ax又称为高效率无线标准(High-Efficiency Wireless,HEW),是一项制定中的无线局域网标准。标准草案由IEEE标准协会的TGax工作组制定 11ax支持2.4GHz和5GHz频段,向下兼容11a/b/g/n/ac。目标是支持室内室外场景、提高频谱效率和密集用户环境下4倍实际吞吐量提升。
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IEEE P802.11ax/D1.4, August 2017
Copyright © 2017 IEEE. All rights reserved.
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This is an unapproved IEEE Standards Draft, subject to change.
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IEEE P802.11ax
™
/D1.4, August 2017
(amendment to IEEE Std 802.11-2016
as amended by IEEE Std 802.11ai™-2016,
IEEE Std 802.11ah™-2016,
IEEE P802.11aq™/D10.0,
IEEE P802.11ak™/D4.0,
and IEEE P802.11aj™/D6.0)
IEEE P802.11ax™/D1.4
Draft Standard for
Information technology— Tele-
communications and information exchange between
systems Local and metropolitan area networks—
Specific requirements
Part 11: Wireless LAN Medium Access Control
(MAC) and Physical Layer (PHY) Specifications
Amendment 6: Enhancements for High Efficiency
WLAN
Prepared by the 802.11 Working Group of the
LAN/MAN Standards Committee
of the
IEEE Computer Society
Copyright © 2017 by the IEEE.
Three Park Avenue
New York, New York 10016-5997, USA
All rights reserved.
This document is an unapproved draft of a proposed IEEE Standard. As such, this document is subject to
change. USE AT YOUR OWN RISK! Because this is an unapproved draft, this document must not be
utilized for any conformance/compliance purposes. Permission is hereby granted for IEEE Standards
Committee participants to reproduce this document for purposes of international standardization
consideration. Prior to adoption of this document, in whole or in part, by another standards development
organization permission must first be obtained from the IEEE Standards Activities Department
(stds.ipr@ieee.org). Other entities seeking permission to reproduce this document, in whole or in part, must
also obtain permission from the IEEE Standards Activities Department.
IEEE Standards Activities Department
445 Hoes Lane
IEEE P802.11ax/D1.4, August 2017
2 Copyright © 2017 IEEE. All rights reserved.
This is an unapproved IEEE Standards Draft, subject to change.
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Abstract: This amendment defines modifications to both the IEEE 802.11 physical layer (PHY)
and the medium access control (MAC) sublayer for high efficiency operation in frequency bands
between 1 GHz and 6 GHz.
Keywords: high efficiency, PHY, physical layer, MAC, medium access control, OFDMA, orthogo-
nal frequency division multiple access, wireless local area network, WLAN
IEEE P802.11ax/D1.4, August 2017
Copyright © 2017 IEEE. All rights reserved.
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This is an unapproved IEEE Standards Draft, subject to change.
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Piscataway, NJ 08854, USA
This introduction is not part of IEEE P802.11ax /D1.4, August 2017, IEEE Standard for Information
technology—Telecommunications and information exchange between systems—Local and metropoli-
tan area network—Specific requirements—Part 11: Wireless LAN Medium Access Control (MAC)
and Physical Layer (PHY) Specifications—Amendment 6: Enhancements for High Efficiency WLAN.
IEEE P802.11ax/D1.4, August 2017
4 Copyright © 2017 IEEE. All rights reserved.
This is an unapproved IEEE Standards Draft, subject to change.
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Introduction
This amendment defines modifications to both the IEEE 802.11 physical layer (PHY) and the medium
access control (MAC) sublayer for high efficiency operation in frequency bands between 1 GHz and 6 GHz.
Laws and regulations
Users of these documents should consult all applicable laws and regulations. Compliance with the
provisions of this standard does not imply compliance to any applicable regulatory requirements.
Implementers of the standard are responsible for observing or referring to the applicable regulatory
requirements. IEEE does not, by the publication of its standards, intend to urge action that is not in
compliance with applicable laws, and these documents may not be construed as doing so.
Copyrights
This document is copyrighted by the IEEE. It is made available for a wide variety of both public and private
uses. These include both use, by reference, in laws and regulations, and use in private self-regulation,
standardization, and the promotion of engineering practices and methods. By making this document
available for use and adoption by public authorities and private users, the IEEE does not waive any rights in
copyright to this document.
Updating of IEEE documents
Users of IEEE standards should be aware that these documents may be superseded at any time by the
issuance of new editions or may be amended from time to time through the issuance of amendments,
corrigenda, or errata. An official IEEE document at any point in time consists of the current edition of the
document together with any amendments, corrigenda, or errata then in effect. In order to determine whether
a given document is the current edition and whether it has been amended through the issuance
of amendments, corrigenda, or errata, visit the IEEE Standards Association website at http://
ieeexplore.ieee.org/xpl/standards.jsp, or contact the IEEE at the address listed previously.
For more information about the IEEE Standards Association or the IEEE standards development process,
visit the IEEE-SA website at http://standards.ieee.org.
Errata
Errata, if any, for this and all other standards can be accessed at the following URL: http://
standards.ieee.org/findstds/errata/index.html. Users are encouraged to check this URL for errata
periodically.
Patents
Attention is called to the possibility that implementation of this standard may require use of subject matter
covered by patent rights. By publication of this standard, no position is taken with respect to the existence or
validity of any patent rights in connection therewith. A patent holder or patent applicant has filed a statement
IEEE P802.11ax/D1.4, August 2017
Copyright © 2017 IEEE. All rights reserved.
5
This is an unapproved IEEE Standards Draft, subject to change.
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of assurance that it will grant licenses under these rights without compensation or under reasonable rates,
with reasonable terms and conditions that are demonstrably free of any unfair discrimination to applicants
desiring to obtain such licenses. Other Essential Patent Claims may exist for which a statement of assurance
has not been received. The IEEE is not responsible for identifying Essential Patent Claims for which a
license may be required, for conducting inquiries into the legal validity or scope of Patents Claims, or
determining whether any licensing terms or conditions are reasonable or non-discriminatory. Further
information may be obtained from the IEEE Standards Association.
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